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- This comparison shows the changes necessary to convert path
/openrisc/tags/gnu-src/gcc-4.5.1/gcc-4.5.1-or32-1.0rc4/libgomp/config/linux/ia64
- from Rev 273 to Rev 519
- ↔ Reverse comparison
Rev 273 → Rev 519
/futex.h
0,0 → 1,94
/* Copyright (C) 2005, 2008, 2009 Free Software Foundation, Inc. |
Contributed by Richard Henderson <rth@redhat.com>. |
|
This file is part of the GNU OpenMP Library (libgomp). |
|
Libgomp is free software; you can redistribute it and/or modify it |
under the terms of the GNU General Public License as published by |
the Free Software Foundation; either version 3, or (at your option) |
any later version. |
|
Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY |
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
more details. |
|
Under Section 7 of GPL version 3, you are granted additional |
permissions described in the GCC Runtime Library Exception, version |
3.1, as published by the Free Software Foundation. |
|
You should have received a copy of the GNU General Public License and |
a copy of the GCC Runtime Library Exception along with this program; |
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
<http://www.gnu.org/licenses/>. */ |
|
/* Provide target-specific access to the futex system call. */ |
|
#include <sys/syscall.h> |
|
|
|
static inline long |
sys_futex0(int *addr, long op, int val) |
{ |
register long out0 asm ("out0") = (long) addr; |
register long out1 asm ("out1") = op; |
register long out2 asm ("out2") = val; |
register long out3 asm ("out3") = 0; |
register long r8 asm ("r8"); |
register long r10 asm ("r10"); |
register long r15 asm ("r15") = SYS_futex; |
|
__asm __volatile ("break 0x100000" |
: "=r"(r15), "=r"(out0), "=r"(out1), "=r"(out2), "=r"(out3), |
"=r"(r8), "=r"(r10) |
: "r"(r15), "r"(out0), "r"(out1), "r"(out2), "r"(out3) |
: "memory", "out4", "out5", "out6", "out7", |
/* Non-stacked integer registers, minus r8, r10, r15. */ |
"r2", "r3", "r9", "r11", "r12", "r13", "r14", "r16", "r17", "r18", |
"r19", "r20", "r21", "r22", "r23", "r24", "r25", "r26", "r27", |
"r28", "r29", "r30", "r31", |
/* Predicate registers. */ |
"p6", "p7", "p8", "p9", "p10", "p11", "p12", "p13", "p14", "p15", |
/* Non-rotating fp registers. */ |
"f6", "f7", "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", |
/* Branch registers. */ |
"b6"); |
return r8 & r10; |
} |
|
static inline void |
futex_wait (int *addr, int val) |
{ |
long err = sys_futex0 (addr, gomp_futex_wait, val); |
if (__builtin_expect (err == ENOSYS, 0)) |
{ |
gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG; |
gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG; |
sys_futex0 (addr, gomp_futex_wait, val); |
} |
} |
|
static inline void |
futex_wake (int *addr, int count) |
{ |
long err = sys_futex0 (addr, gomp_futex_wake, count); |
if (__builtin_expect (err == ENOSYS, 0)) |
{ |
gomp_futex_wait &= ~FUTEX_PRIVATE_FLAG; |
gomp_futex_wake &= ~FUTEX_PRIVATE_FLAG; |
sys_futex0 (addr, gomp_futex_wake, count); |
} |
} |
|
static inline void |
cpu_relax (void) |
{ |
__asm volatile ("hint @pause" : : : "memory"); |
} |
|
static inline void |
atomic_write_barrier (void) |
{ |
__sync_synchronize (); |
} |
futex.h
Property changes :
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Added: svn:keywords
## -0,0 +1 ##
+Id
\ No newline at end of property
Index: mutex.h
===================================================================
--- mutex.h (nonexistent)
+++ mutex.h (revision 519)
@@ -0,0 +1,65 @@
+/* Copyright (C) 2005, 2008, 2009 Free Software Foundation, Inc.
+ Contributed by Richard Henderson .
+
+ This file is part of the GNU OpenMP Library (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ . */
+
+/* This is a Linux specific implementation of a mutex synchronization
+ mechanism for libgomp. This type is private to the library. This
+ implementation uses atomic instructions and the futex syscall. */
+
+#ifndef GOMP_MUTEX_H
+#define GOMP_MUTEX_H 1
+
+typedef int gomp_mutex_t;
+
+#define GOMP_MUTEX_INIT_0 1
+
+static inline void gomp_mutex_init (gomp_mutex_t *mutex)
+{
+ *mutex = 0;
+}
+
+extern void gomp_mutex_lock_slow (gomp_mutex_t *mutex);
+static inline void gomp_mutex_lock (gomp_mutex_t *mutex)
+{
+ if (!__sync_bool_compare_and_swap (mutex, 0, 1))
+ gomp_mutex_lock_slow (mutex);
+}
+
+extern void gomp_mutex_unlock_slow (gomp_mutex_t *mutex);
+
+/* IA64 needs a __sync_synchronize call before __sync_lock_test_and_set
+ because __sync_lock_test_and_set is not a full memory fence. */
+static inline void gomp_mutex_unlock (gomp_mutex_t *mutex)
+{
+ int val;
+ __sync_synchronize ();
+ val = __sync_lock_test_and_set (mutex, 0);
+ if (__builtin_expect (val > 1, 0))
+ gomp_mutex_unlock_slow (mutex);
+}
+
+static inline void gomp_mutex_destroy (gomp_mutex_t *mutex)
+{
+}
+
+#endif /* GOMP_MUTEX_H */
mutex.h
Property changes :
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Added: svn:keywords
## -0,0 +1 ##
+Id
\ No newline at end of property